<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
</head>
<body>
   <!-- what is javascript -->
<!-- It is the programming language inside the browser -->
<!-- inline javascript -->
   <!-- external javascript file -->
<script type="text/javascript">

    // statements
</script>

<script type="text/javascript" src="app.js"></script>


</body>
</html>